Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

On-board diagnostics (OBD) connecting port protection structure

An interface protection structure and interface technology, applied in the direction of connecting parts to protect grounding/shielding devices, contact parts, etc., can solve the problems of uncertain switch status, switch short circuit, burning interface circuits, etc., to avoid secondary damage to the car and improve the use of The effect of longevity

Inactive Publication Date: 2013-05-15
LAUNCH SOFTWARE DEV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the power-on process, the power supply and each unit circuit are in a transient state, and the switch state of the switch circuit unit used to select the automotive diagnostic interface switch is uncertain, and the switch will short-circuit instantaneously, and the interface circuit will be burned under certain conditions. Or burn the ECU circuit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • On-board diagnostics (OBD) connecting port protection structure
  • On-board diagnostics (OBD) connecting port protection structure
  • On-board diagnostics (OBD) connecting port protection structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] see figure 2 As shown, the OBD interface is used to provide the connection between the car and diagnostic equipment. The interface has a total of 16 pins, of which 16 pins are power supply terminals, and 4 and 5 pins are grounded.

[0016] In one embodiment of the present invention, pin 7 is a K line, pin 15 is an L line, pins 2 and 10 are used as J1850 interfaces, and pins 6 and 14 are used as CAN communication interfaces.

[0017] image 3 Among them, the pin length of 4 and 5 pins is greater than that of 16 pins;

[0018] The pin length of 16 pins is greater than the pin length of 1, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an on-board diagnostics (OBD) connecting port protection structure. A connecting port comprises 16 lead feet, the lead foot 16 is a power supply connection end, the lead foot 4 and lead foot 5 are ground ends, the length of the contact pins of the lead foot 4 and the lead foot 5 is bigger than that of the lead foot 16, and the length of the contact pin of the sixteenth contact pin is bigger than that of other lead feet. According to the OBD connecting port protection structure, the length of the contact pins of the lead foot 4 and the lead foot 5 is arranged to be biggest, the length of the contact pin of the lead foot 16 takes a second place, the length of the contact pins of other lead feet is smallest, and therefore the system is powered on firstly. Therefore, an interface circuit or an electronic control unit (ECU) circuit is burned down due to transient short circuit of a switch after being powered on, the service life of automobile diagnostic equipment is prolonged, and meanwhile an automobile is protected from being damaged secondarily by a maintenance man when the automobile is maintained.

Description

technical field [0001] The invention relates to the technical field of automobile diagnosis, in particular to an automobile diagnosis interface (OBD) protection structure. Background technique [0002] Automobile is the most familiar and common means of transportation for people, and it plays a very important role in people's life. With the development of society and the advancement of science and technology, more and more electronic technology, automation technology and computer technology are used in the design and production of automobiles. On the one hand, the degree of automation of automobiles is getting higher and higher, and the performance is more superior. , the operation is more convenient and flexible. [0003] Existing automotive fault diagnosis equipment communicates with the ECU (Electronic Control Unit) inside the vehicle through a diagnostic interface circuit, such as figure 1 shown. During the power-on process, the power supply and each unit circuit are ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/02H01R13/652
Inventor 刘均邓芳鸿
Owner LAUNCH SOFTWARE DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com